Home / 214,538.60-321,923.10-89,892.20

Finding the Fourth Proportional to 214,538.60, 321,923.10 and 89,892.20

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Solution

The fourth proportional to 214,538.60, 321,923.10 and 89,892.20 is: 134,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,538.60 : 321,923.10 = 89,892.20 : x
  2. Step 2: Convert to fraction form
    214,538.60/321,923.10 = 89,892.20/x
  3. Step 3: Cross multiply
    214,538.60x = 321,923.10 × 89,892.20
  4. Step 4: Simplify right side
    214,538.60x = 28,938,375,689.82
  5. Step 5: Solve for x
    x = 28,938,375,689.82/214,538.60
  6. Step 6: Final answer
    x = 134,886.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.